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National Stock Number: 5306-01-367-9255
Federal Supply Class: 5306
National Item Identification Number: 013679255
Description: BOLT,INTERNALLY RELIEVED BODY
Detail: An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.
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Manufacturer Information:
803-5001048 PIECE 77 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
CONCENTRIC HOLE DIAMETER | 0.781 INCHES MINIMUM AND 0.782 INCHES MAXIMUM | COUNTERBORE DIAMETER | 0.437 INCHES MINIMUM AND 0.440 INCHES MAXIMUM | COUNTERBORE DEPTH | 0.435 INCHES NOMINAL | FASTENER LENGTH | 1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM | HEAD HEIGHT | 1.435 INCHES NOMINAL | HEAD STYLE | HEXAGON | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | NICKEL ALLOY 400 OVERALL | NOMINAL THREAD DIAMETER | 1.125 INCHES | SPECIAL FEATURES | COUNTERBORE DIAMETER 0.781 INCHES MIN AND 0.782 INCHES MAX LENGTH IS 1.425 INCHES MIN AND 1.455 INCHES MAX | STYLE DESIGNATOR | COUNTERBORE UNTHREADED | WIDTH BETWEEN FLATS | 1.250 INCHES NOMINAL | THREAD DIRECTION | RIGHT-HAND | THREAD CLASS | 2A | THREAD LENGTH | 0.425 INCHES MINIMUM AND 0.455 INCHES MAXIMUM | THREAD SERIES DESIGNATOR | UNF | THREAD QUANTITY PER INCH | 12 |
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